Pith Number

pith:WTH5OHJ2

pith:2020:WTH5OHJ2LTSHEUL2BJYBZKKBGI

not attested not anchored not stored refs pending

Motivated proofs: What they are, why they matter and how to write them

Rebecca Lea Morris

arxiv:2001.02657 v1 · 2020-01-08 · math.HO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WTH5OHJ2LTSHEUL2BJYBZKKBGI}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Cited by

1 paper in Pith

Proof2Hybrid: Automatic Mathematical Benchmark Synthesis for Proof-Centric Problems

Receipt and verification

First computed	2026-07-05T00:50:12.300836Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b4cfd71d3a5ce472517a0a701ca941323b344cdf2404b8140e70d68e1dd7ec52

Aliases

arxiv: 2001.02657 · arxiv_version: 2001.02657v1 · doi: 10.48550/arxiv.2001.02657 · pith_short_12: WTH5OHJ2LTSH · pith_short_16: WTH5OHJ2LTSHEUL2 · pith_short_8: WTH5OHJ2

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/WTH5OHJ2LTSHEUL2BJYBZKKBGI \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: b4cfd71d3a5ce472517a0a701ca941323b344cdf2404b8140e70d68e1dd7ec52

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "71165ef406027542d8bbc069d4963608009bdbd15f83da74776035ea86a5dcef",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.HO",
    "submitted_at": "2020-01-08T17:56:25Z",
    "title_canon_sha256": "02a6ec0d0c40ab04339c25018b59a8ed949b20e606f4d4996683d84b9b8a3af3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2001.02657",
    "kind": "arxiv",
    "version": 1
  }
}